Nuclear Power InformationMeasures against Potential Natural Disasters

Maintenance and Improvement of Emergency Response Capabilities

Enhancement of Emergency Response Capabilities for non-business days and nighttime

Based on the lessons learned from the Fukushima Daiichi accident, initial response staff are stationed 24/7 on the premises of Takahama Units 3 and 4 and Ohi Units 3 and 4 in order to enhance the emergency response capabilities.
In addition, for the aims of strengthening the control of the accident, we have implemented various support systems providing personnel, materials, equipment and technical assistance timely.

*Takahama Units 3 and 4,Ohi Units 3 and 4

Education/Training Program on an Assumption of an Accident

Integrated Nuclear Disaster Prevention Drill

Integrated nuclear disaster prevention drills are conducted assuming a severe accident during which all on-site power supplies are lost, disabling cooling of the reactor.

Drill on power supply

Drills on connection and startup of a power supply car are conducted on an assumption of unavailability of power supply from transmission lines and diesel generators. In addition, nighttime drills are also conducted.

Nighttime drill on connection/startup of power supply cars

Drill on installation of large capacity pumps

Drill on the installation of pumps injecting coolant into reactor

Drill on installation of fire pumps while putting protective clothes and masks on an assumption of adverse conditions.

Drill on control of radioactive release

Drills on control of radioactive release to the environment are conducted on an assumption of containment vessel failure.

Drill on water discharge directly to the containment utilizing water cannons to mitigate radioactive release

Drill on removal of rubbles using a heavy machine

Drills on removal of rubbles using heavy machines deployed on-site are conducted to ensure the access of workers and vehicles as well as passages assuming that a tsunami or flooding makes rubbles being scattered across the site area.

Drill on use of the dozer shovel to remove rubbles

Drill on operations in the event of loss of power supply

Drill on emergency operations are conducted to enhance operators’ capabilities safety terminate the events under adverse conditions assuming a loss of all on-site power supplies.